4  * SPDX-License-Identifier: Apache-2.0
30 	uint8_t divider;  member
33 static int sam_pwm_get_cycles_per_sec(const struct device *dev,  in sam_pwm_get_cycles_per_sec()
36 	const struct sam_pwm_config *config = dev->config;  in sam_pwm_get_cycles_per_sec()
37 	uint8_t prescaler = config->prescaler;  in sam_pwm_get_cycles_per_sec()
38 	uint8_t divider = config->divider;  in sam_pwm_get_cycles_per_sec()  local
41 		  ((1 << prescaler) * divider);  in sam_pwm_get_cycles_per_sec()
46 static int sam_pwm_set_cycles(const struct device *dev, uint32_t channel,  in sam_pwm_set_cycles()
50 	const struct sam_pwm_config *config = dev->config;  in sam_pwm_set_cycles()
52 	Pwm * const pwm = config->regs;  in sam_pwm_set_cycles()
56 		return -EINVAL;  in sam_pwm_set_cycles()
60 		return -ENOTSUP;  in sam_pwm_set_cycles()
64 		return -ENOTSUP;  in sam_pwm_set_cycles()
75 	if (pwm->PWM_CH_NUM[channel].PWM_CMR != cmr) {  in sam_pwm_set_cycles()
76 		pwm->PWM_DIS = 1 << channel;  in sam_pwm_set_cycles()
78 		pwm->PWM_CH_NUM[channel].PWM_CMR = cmr;  in sam_pwm_set_cycles()
79 		pwm->PWM_CH_NUM[channel].PWM_CPRD = period_cycles;  in sam_pwm_set_cycles()
80 		pwm->PWM_CH_NUM[channel].PWM_CDTY = pulse_cycles;  in sam_pwm_set_cycles()
85 		pwm->PWM_CH_NUM[channel].PWM_CPRDUPD = period_cycles;  in sam_pwm_set_cycles()
86 		pwm->PWM_CH_NUM[channel].PWM_CDTYUPD = pulse_cycles;  in sam_pwm_set_cycles()
90 	pwm->PWM_ENA = 1 << channel;  in sam_pwm_set_cycles()
95 static int sam_pwm_init(const struct device *dev)  in sam_pwm_init()
97 	const struct sam_pwm_config *config = dev->config;  in sam_pwm_init()
99 	Pwm * const pwm = config->regs;  in sam_pwm_init()
100 	uint8_t prescaler = config->prescaler;  in sam_pwm_init()
101 	uint8_t divider = config->divider;  in sam_pwm_init()  local
102 	int retval;  in sam_pwm_init()
104 	/* FIXME: way to validate prescaler & divider */  in sam_pwm_init()
108 			       (clock_control_subsys_t)&config->clock_cfg);  in sam_pwm_init()
110 	retval = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);  in sam_pwm_init()
116 	pwm->PWM_CLK = PWM_CLK_PREA(prescaler) | PWM_CLK_DIVA(divider);  in sam_pwm_init()
133 		.divider = DT_INST_PROP(inst, divider),			\